ResourceFilter.cpp

   1 //
   2 // Copyright 2011 The Android Open Source Project
   3 //
   4 // Build resource files from raw assets.
   5 //
   6
   7 #include "ResourceFilter.h"
   8
   9 status_t
  10 ResourceFilter::parse(const char* arg)
  11 {
  12     if (arg == NULL) {
  13         return 0;
  14     }
  15
  16     const char* p = arg;
  17     const char* q;
  18
  19     while (true) {
  20         q = strchr(p, ',');
  21         if (q == NULL) {
  22             q = p + strlen(p);
  23         }
  24
  25         String8 part(p, q-p);
  26
  27         if (part == "zz_ZZ") {
  28             mContainsPseudo = true;
  29         }
  30         int axis;
  31         uint32_t value;
  32         if (AaptGroupEntry::parseNamePart(part, &axis, &value)) {
  33             fprintf(stderr, "Invalid configuration: %s\n", arg);
  34             fprintf(stderr, "                       ");
  35             for (int i=0; i<p-arg; i++) {
  36                 fprintf(stderr, " ");
  37             }
  38             for (int i=0; i<q-p; i++) {
  39                 fprintf(stderr, "^");
  40             }
  41             fprintf(stderr, "\n");
  42             return 1;
  43         }
  44
  45         ssize_t index = mData.indexOfKey(axis);
  46         if (index < 0) {
  47             mData.add(axis, SortedVector<uint32_t>());
  48         }
  49         SortedVector<uint32_t>& sv = mData.editValueFor(axis);
  50         sv.add(value);
  51         // if it's a locale with a region, also match an unmodified locale of the
  52         // same language
  53         if (axis == AXIS_LANGUAGE) {
  54             if (value & 0xffff0000) {
  55                 sv.add(value & 0x0000ffff);
  56             }
  57         }
  58         p = q;
  59         if (!*p) break;
  60         p++;
  61     }
  62
  63     return NO_ERROR;
  64 }
  65
  66 bool
  67 ResourceFilter::isEmpty() const
  68 {
  69     return mData.size() == 0;
  70 }
  71
  72 bool
  73 ResourceFilter::match(int axis, uint32_t value) const
  74 {
  75     if (value == 0) {
  76         // they didn't specify anything so take everything
  77         return true;
  78     }
  79     ssize_t index = mData.indexOfKey(axis);
  80     if (index < 0) {
  81         // we didn't request anything on this axis so take everything
  82         return true;
  83     }
  84     const SortedVector<uint32_t>& sv = mData.valueAt(index);
  85     return sv.indexOf(value) >= 0;
  86 }
  87
  88 bool
  89 ResourceFilter::match(int axis, const ResTable_config& config) const
  90 {
  91     return match(axis, AaptGroupEntry::getConfigValueForAxis(config, axis));
  92 }
  93
  94 bool
  95 ResourceFilter::match(const ResTable_config& config) const
  96 {
  97     for (int i=AXIS_START; i<=AXIS_END; i++) {
  98         if (!match(i, AaptGroupEntry::getConfigValueForAxis(config, i))) {
  99             return false;
 100         }
 101     }
 102     return true;
 103 }
 104
 105 const SortedVector<uint32_t>* ResourceFilter::configsForAxis(int axis) const
 106 {
 107     ssize_t index = mData.indexOfKey(axis);
 108     if (index < 0) {
 109         return NULL;
 110     }
 111     return &mData.valueAt(index);
 112 }